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Finding the Fourth Proportional to 63,783.92, 88,011.86 and 36,921.18

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Solution

The fourth proportional to 63,783.92, 88,011.86 and 36,921.18 is: 50,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,783.92 : 88,011.86 = 36,921.18 : x
  2. Step 2: Convert to fraction form
    63,783.92/88,011.86 = 36,921.18/x
  3. Step 3: Cross multiply
    63,783.92x = 88,011.86 × 36,921.18
  4. Step 4: Simplify right side
    63,783.92x = 3,249,501,725.19
  5. Step 5: Solve for x
    x = 3,249,501,725.19/63,783.92
  6. Step 6: Final answer
    x = 50,945.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.